Sierra Wireless AirLink ALEOS Unrestricted Upload of File with Dangerous Type Vulnerability. Actively exploited: CISA added this vulnerability to its Known Exploited Vulnerabilities catalog on 12/12/2025. Patch affected systems as an emergency.
| Package | Affected versions | Patched versions |
|---|---|---|
| AirLink ALEOS | Versions not published yet (product named by CISA KEV) | |
An exploitable remote code execution vulnerability exists in the upload.cgi functionality of Sierra Wireless AirLink ES450 FW 4.9.3. A specially crafted HTTP request can upload a file, resulting in executable code being uploaded, and routable, to the webserver. An attacker can make an authenticated HTTP request to trigger this vulnerability.
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